待解决问题
请问UE是如何知道使用哪种mode的？比如CDD还是闭环预编码  (进入论坛模式)
离问题结束还有0天0小时  |  提问者：chestthinker   |  提问时间：2012-6-13 14:06
请问UE是如何知道使用哪种mode的？比如CDD还是闭环预编码
问题答案 ( 10 条 )
according to the transmissionMode contained in RRCConnnectionReconfiguration
 |  回应该答案 (0)  |  回答者：jeffyko   |  2012-6-13 20:03


那UE怎么知道如何去配置RRCConnnectionReconfiguration这个参数呢？eNB是如何告诉UE该怎么配置的？
 |  回应该答案 (0)  |  回答者：chestthinker   |  2012-6-13 20:10
RRCOnnectinReconfiguration is a RRC singalling which is sent from eNB to UE, in other words, the switching of transmission mode is decided at eNB side and is informed to UE via RRC signalling.
 |  回应该答案 (0)  |  回答者：jeffyko   |  2012-6-13 20:12


非常感谢，再问一下，RRC信令是在PDSCH中传输的吗？
 |  回应该答案 (0)  |  回答者：chestthinker   |  2012-6-14 08:21
信道映射关系:
RRC信令 -> DCCH -> DL-SCH -> PDSCH
 |  回应该答案 (0)  |  回答者：kin5000   |  2012-6-14 10:32
pls refer to section 6.2.1 of 36.331
 |  回应该答案 (0)  |  回答者：jeffyko   |  2012-6-14 21:37



[font=Courier New][size=2]rrcConnectionReconfiguration
RRCConnectionReconfiguration,[/size][/font]
找到了，谢谢
 |  回应该答案 (0)  |  回答者：chestthinker   |  2012-6-15 09:57
是RRCConnectionReconfiguration中的哪个参数决定了发送模式的呢？

-- ASN1START

RRCConnectionReconfiguration ::= SEQUENCE {
rrc-TransactionIdentifier RRC-TransactionIdentifier,
criticalExtensions CHOICE {
c1 CHOICE{
rrcConnectionReconfiguration-r8 RRCConnectionReconfiguration-r8-IEs,
spare7 NULL,
spare6 NULL, spare5 NULL, spare4 NULL,
spare3 NULL, spare2 NULL, spare1 NULL
},
criticalExtensionsFuture SEQUENCE {}
}
}

RRCConnectionReconfiguration-r8-IEs ::= SEQUENCE {
measConfig MeasConfig OPTIONAL, -- Need ON
mobilityControlInfo MobilityControlInfo OPTIONAL, -- Cond HO
dedicatedInfoNASList SEQUENCE (SIZE(1..maxDRB)) OF
DedicatedInfoNAS OPTIONAL, -- Cond nonHO
radioResourceConfigDedicated RadioResourceConfigDedicated OPTIONAL, -- Cond HO-toEUTRA
securityConfigHO SecurityConfigHO OPTIONAL, -- Cond HO
nonCriticalExtension RRCConnectionReconfiguration-v890-IEs OPTIONAL
}

RRCConnectionReconfiguration-v890-IEs ::= SEQUENCE {
lateNonCriticalExtension OCTET STRING OPTIONAL, -- Need OP
nonCriticalExtension RRCConnectionReconfiguration-v920-IEs OPTIONAL
}

RRCConnectionReconfiguration-v920-IEs ::= SEQUENCE {
otherConfig-r9 OtherConfig-r9 OPTIONAL, -- Need ON
fullConfig-r9 ENUMERATED {true} OPTIONAL, -- Cond HO-Reestab
nonCriticalExtension RRCConnectionReconfiguration-v1020-IEs OPTIONAL
}

RRCConnectionReconfiguration-v1020-IEs ::= SEQUENCE {
sCellToReleaseList-r10 SCellToReleaseList-r10 OPTIONAL, -- Need ON
sCellToAddModList-r10 SCellToAddModList-r10 OPTIONAL, -- Need ON
nonCriticalExtension SEQUENCE {} OPTIONAL -- Need OP
}

SCellToAddModList-r10 ::= SEQUENCE (SIZE (1..maxSCell-r10)) OF SCellToAddMod-r10

SCellToAddMod-r10 ::= SEQUENCE {
sCellIndex-r10 SCellIndex-r10,
cellIdentification-r10 SEQUENCE {
physCellId-r10 PhysCellId,
dl-CarrierFreq-r10 ARFCN-ValueEUTRA
} OPTIONAL, -- Cond SCellAdd
radioResourceConfigCommonSCell-r10 RadioResourceConfigCommonSCell-r10 OPTIONAL, -- Cond SCellAdd
radioResourceConfigDedicatedSCell-r10 RadioResourceConfigDedicatedSCell-r10 OPTIONAL, -- Cond SCellAdd2
...
}

SCellToReleaseList-r10 ::= SEQUENCE (SIZE (1..maxSCell-r10)) OF SCellIndex-r10

SecurityConfigHO ::= SEQUENCE {
handoverType CHOICE {
intraLTE SEQUENCE {
securityAlgorithmConfig SecurityAlgorithmConfig OPTIONAL, -- Cond fullConfig
keyChangeIndicator BOOLEAN,
nextHopChainingCount NextHopChainingCount
},
interRAT SEQUENCE {
securityAlgorithmConfig SecurityAlgorithmConfig,
nas-SecurityParamToEUTRA OCTET STRING (SIZE(6))
}
},
...
}


-- ASN1STOP
 |  回应该答案 (0)  |  回答者：chestthinker   |  2012-6-15 15:12
hi,
radioResourceConfigDedicated - physicalConfigDedicated - antennaInfo - transmissionMode

the simplest method is to search 36.331 by keyword "transmissionMode ".
 |  回应该答案 (0)  |  回答者：jeffyko   |  2012-6-16 10:21


thank you!
 |  回应该答案 (0)  |  回答者：chestthinker   |  2012-6-18 20:06
 
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